From Longman Dictionary of Contemporary English do up phrasal verb 1 to fasten something, or to be fastened in a particular way do something ↔ up Do up your coat or you’ll get cold. a skirt which does up at the back 2 do something ↔ up to repair an old building or car, or to improve its appearance They did up an old cottage in the Scottish Highlands. 3 do something ↔ up to decorate something in a particular way The apartment...